Table of Contents. 



VOL. XV. 



p. AGE. 



Proceedings i- 59' '^'^'3 



Donations 2, 104 



In INIenioriani, Dr. A.J. Howe 3 



Weather, Water and Disease. By Dr. Wm. Carson 5 



North American Helicospone. By A. P. Morgan 39 



Photographing Natural Objects without a Camera. By W. A. 



Kellerman 53 



Variations and Intermediate Forms of Certain Asters. By W. C. 



Werner 55 



Report of Treasurer 64 



Trustees' Report 65 



Report of Director of Museum 67 



Report of Secretary 68 



Report of Curator of Photography . . 69 



Memoir of Dr. R. M. Byrnes 7^ 



Preservation of Plants as Fossils. By Joseph F. James 75 



Some New Species and New Structural Parts of Fossils. By S. A. 



Miller and Chas. Faber 79 



]\Ianual of Paleontology of the Cincinnati Group. Part III. By 



Joseph F. James ■• 88 



Remarks on the Stems and Roots of Crinoids from near Lebanon, 



Ohio. By Dr. D. T. D. Dyche loi 



Exchanges 104 



Observations concerning Fort Ancient. By Dr. S. S. Scoville iii 



MordellidiL- in the Vicinity of Cincinnati. By Chas. Dury .... 123 



Myxomycetes of the Miami Valley. By A. P. Morgan, ist Paper 127 

 Manual of the Paleontology of the Cincinnati Group. Part IV. 



By Joseph F. James I44 



Microscopical Study of Ohio Limestones. By G. Perry Grimsley, 160 



Niagara's Water Power. By B. M. Ricketts, M. D 168 



Description of a New Phalloid. By A. P. IMorgan 171 



